Device for coupling alemite valves to speedometer cables



l Y 1,618,819 Feb. 22, 1927- G. w, EMERTY DEVICE FOR COUPLING ALEMTE VALVES TO SPEEDOMETER CABLES Filed Aug. 18. 1926 INVENTOR.

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Patented Feb. 22, 1927.

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stars 1,618,819 trice.

GERG'E Vf. EMERT, OF ENDICOTT, NEW YORK.

Application filed August 18, 1926. Serial .Na 130,017.

rlhis invention is a novel device for coupling an alemite or other high pressure valve to a speedometer or other flexible cable, for use in applying lubricant to the casings of such flexible cables, my device permitting the cable to be filled with grease or other lubricant from a suitable ygrease gun or other supply of lubricant under pressure. Another object of the invention is to provideV a novel coupling device having means for preventing the end of the flexible cable or shaft from receding within the casing while the casing is being filled with lubri- Heretofore, when it has been necessary to fill or refill speedometer cables with grease or lubricant, the work has been very difficult to perform owing to the resistance of the flow of grease past the links of the fiexible shaft within the casing, and furthermore it has been dilhcult to prevent the grease from forcing the end of the shaft inwardly inthe casing to such point as to be inaccessible after lthe greasing operation.

My simple device however maintains the end of the shaft in itsA proper Vposition in the casing, and permits grease to` be aptherethrough.

plied under pressure to the cable in order to thoroughly fill same with lubricant.

I will explain the invention with reference to the accompanying drawing which illustrates'one practical embodiment there* of, to enable others to adopt and use the same, and will summarize in the claims the novel features of construction, and novel combinations of parts, for which protection is desired.

In the drawing Fig. l is a longitudinal part sectional view showing the coupling device, nipple, and the adjacent end of the fiexible shaft casing.

Fig. 2 is a longitudinal sectional view F ig. 3 is a section on line 3 3, Fig. 2. As shown in the drawing, my novel cou pling device preferably comprises a tubular body 1 having a stepped bore therein, the outer and larger portion 1fL of the stepped bore being tapped in order to receive the threaded end of the usual alemite or other high pressure nipple 2; the nipple having means thereon for connection with the ordinary grease gun.

The opposite end of the body 1 is externally threaded as at 1,b and adapted tov enter the tapped bo-re 6a of a knurled ferrule 6, mounted in any suitable manner on the end of the casing 3 in which the flexible shaft 4 rotates. AsI shown in Fig. 2, ferrule 6 is provided at its inner end with an internal annular flange or shoulder 61 adapted to fit in a correspondingly shaped circumferential grooive 3:1L -in the exterior surface of casing 3 adjacent the end thereof. Within the smaller step 1c of the bore of body 1 is a member 5 preferably of stiff wire, having its inner end bent to form av loop a of larger diameter thanv step 1, which loop fits within the larger step 1l1 of the bore of body 1 and is prevented from being drawn through thesmaller step 1C by the internal shoulder 1L formed by the steps 1a and 1c. The opposite end of member 5 is provided with an eye 5b extending beyond the end of the member 1 and adapted to enter into the end of casing 3, said eye 5" being adapted to receive vthe usual hooked end 4a of the link memberl L1b Yof the flexible shaft 4, whereby when the hooked end la is so engaged with the eye 5b the flexible shafting 4; will be prevented from receding within the casing 3 and from becoming inaccessible.

In Voperation when it is desired to fill the casing 3 of the flexible shaft with lubricant, the casing 3 and linkdb should be disconnected from their usual connections in the shaft assembly and body 1 placed adjacent the tapped end of f-errule 6. The hooked end 1a of link el should then be engaged with the eyel 5.b at the end of member 5, and body 1 should then be screwed into the end of ferrule 6 connecting same with the casing 3, and the alemite nipple 2 screwed into the outer end of body 1 and engaged with the .grease gun. When s-o engaged, the lubricant will pass through the nipple 2, body l, and into casing 3 and will completely fill the casing.

curely held by the member 5 and prevented from receding within the casing 3. After th-e casing has been completely filled, body 1 may then be disconnected from the ferrule 6 and casing 3; also hook la of link Ll" disconnected from eye 5, and theflexible shafting f1 and casing 3 again adjusted to their normal positions and connections in the shaft assembly.

I do not limit my invention to the exact details shown in the drawing, for obviously lVhile the casing 3 is beingv lfilled, the end of flexible shafting el is `Sechanges may be made therein Within the scope of the claims.

l claim 1. A coupling device for use in filling flexible shaft casings with lubricant, comprising a hollow body having one end adapted to be engaged with a greasegun.

and the opposite end adapted to be engaged with a flexible shalt casing; and means on the device for engz'iging the flexible shalt to prevent axial movement. thereof `within the casing.

2. A` coupling device :for use in lilling flexible shaft casings with lubricant, coniprising a hollow body having one ond adapted to receive a lnliu'icating nipple; and the opposite end adapted to be engaged with a iexible Shaft casing; and njieane in the body for engaging the end of the flexible shaft to prevent axialnioven'ient of the shalt, in the easingduring the lubrication thereol.

3. A coupling device 'lor use in filling.;l flexible shalt casinge` wiih lubricant, coni prising a body having a boret the outer end of the body being adapted to be engaged with a grease gnu; the `inner end oi: Said body being adalited to be engaged with the flexible shat't easing; and a lixed `member within the bore having mennel for engage ment with the end oli` the flexible shalt.

4. A coupling device Al'or use in lllling flexible shaft `casngs with lubricant, com

prising a tubular body7 the outer end of the body being `adapted to beengaged with a grease erun; the inner end ot said body being adapted to be engaged with the llexible shalt casing; and a inelnber fixed within the bore having an eye on its outer end adapted to be engaged with the end 4of the flexible shaft.

5. A coupling device for use in filling flexible shaft casings with lubricant, comprising a tubular body having a stepped bore, the end of the body adjacent the larg-cr step being adapted to be engaged with a grease; gun; the opposite end olf said body being adapted io be engaged with the llexiblc shalt casing; and a nieniber extend ing through the smaller step oi the bore and having a loop on its inner end oli larger dianleter than the smaller step, said loop lying `within the larger step; and said ineinf beiyhaving an eve on ite outer end adapted to be engaged with the end ot the flexible shaft.

(5. il coupling device for nee in lilling llexible .eha'lt :aeings with lubricanh coinprising a tubular body having a stepped bore, the outer end ol the larger step being tapped, and adapted to receive the threaded end oli` a. high pri-esule nipple; the inner end ol said body being externally threaded and adapted to be engaged with the bore oll a, flexible shattcasing'; and a member extending through the smaller step ol the bore and having a loop on its inner end ot larger diameter than the smaller step, said .loop lying Within the larger step; and Said member having an cve on its outer end adapted lo beengaged with the adjacent end ol the Ilexible .L-:hal'ting within the caeing.

ln testimony that I claim the foregoing as my own, l allx my signature.

GEORGE "W, EMllRT. 

